| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonaqueous secondary cell which is flat in shape, having a thickness of less than 12 mm, a large capacity of 30 Wh/l or higher, and volume energy density of 180 Wh/l, and realizing high weight energy density. SOLUTION: This nonaqueous secondary cell stores a stores a positive electrode, a negative electrode, a separator, and nonaqueous electrolyte containing lithium salt in a cell vessel and has a flat shape. It has a thickness of less than 12 mm, energy capacity of 30 Wh or higher, and volume energy density of 180 Wh/l or higher. The cell vessel is provided with a part made of aluminum or alloy, composed mainly of aluminum as the main constituent member. |
